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Publication numberUS2766870 A
Publication typeGrant
Publication dateOct 16, 1956
Filing dateApr 4, 1952
Priority dateApr 4, 1952
Publication numberUS 2766870 A, US 2766870A, US-A-2766870, US2766870 A, US2766870A
InventorsLeonard Baker, Runge Norman H
Original AssigneeDexter Folder Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Bookbinding machine
US 2766870 A
Abstract  available in
Images(3)
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Claims  available in
Description  (OCR text may contain errors)

16, 1956 L. BAKER ETAL 2,766,870

' BOOKBINDING, MACHINE I Filed April 4, 1952 3 Sheets-Sheet l L LL I INFENTERS. BY 720mm )6. W

A I lORNEY.

1956 BAKER ETAL BOOKBINDING MACHINE Fiied April 4, 1952 3 Sheets-Sheet 2 INVENTORS W 6 ATTORNEY.

Oct 16, 1956 L. BAKER ET AL v 2,766,870

BOOKBINDING MACHINE 3 Sheets-Sheet 3 Filed April 4, 1952 United States Patent BOOKBINDING MACHINE Leonard Baker, Hillsdale, N. J., and Norman H. Runge,

Orangebnrg, N. Y., assignors to Dexter Folder Company, Pearl River, N. Y., a corporation of New York Application April 4, 1952, Serial No. 280,606

12 Claims. 01. 198-102) nisms spaced along said path, in the manufacture of books,

catalogues, directories, and the like.

One of the objects of the present invention is to provide an improved book-clamp conveyor of the above character which will effectively and accurately advance 2,766,870 Patented Oct. 16, 1956 veyor constructed in accordance with the present. inverttion;

Fig. 2 is an enlarged vertical longitudinal sectional view ofthe drive end of said conveyor, viewed atthe left of Fig. 1, said view being taken substantially on the line 2--2 of Fig. 3. Fig. 3 is a vertical transverse sectional view substantially on the line 33'of Fig. 1, said view being on the same scale as Fig. 2;

Fig. 4 is a vertical longitudinal sectional view of the off or driven end of said conveyor, viewed at the right of Fig. 1 with the book-clamps omitted for purposes of clearer illustration, said view being on the same scale as Fig. 2 and beingtaken substantially on the line of Fig. 5; V Fig. 5 is a vertical transverse sectional view substantially on the line 5-5 of Fig. 1 with the book-clamps omitted for purposes of clearer illustration, said view be ing on the same scale as Fig. 3; Fig. 6 is a vertical transverse sectional view, on astill larger scale, of one of the book-clamps, said view being taken substantially on the line 66 of Fig. 2; and

successive signature-groups edgewise and in upright position along a straight longitudinal path, whereby the various mechanisms for performing the individual steps in the binding and covering process may be advantageously arranged in a single file.

Another object of the invention is to decrease the overall fioor space required for installation of the general type of bookbinding machine through the provision of a novel book-clamp conveyor structure which will 0ccupy a comparatively small amount of floor space. I

Another object is to provide a book-clamp conveyor of novel construction wherein the book-clamps are advanced edgewise and in upright position through a closed path situated in a vertical plane.

Another object is to provide a novel book-clamp conveyor of the above character wherein the book-clamps are carried by driven endless flexible means for effectively imparting movement to said book-clamps through said closed path.

A further object is to provide a book-clamp conveyor wherein the book-clamps are operatively connected to driven endless flexible means in a novel manner, whereby the angular velocity of each book-clamp in passing around the axes of said endless means is substantially constant so that no whip is imparted to the book-clamps, and a smooth, uniform operation of the latter and said endless means is assured.

, Still another object is to provide a book-clamp of novel construction comprising a movable clamping jaw which is mounted for pivotal movement toward and away from a fixed clamping jaw, and which will remain parallel with said fixed jaw regardless of the position it occupies with respect to the fixed jaw, thus affording firm clamping-engagement of both jaws over the entire surfaces thereof with the signature-group regardless of the thickness thereof.

The above and further objects and novel features ofthe invention will more fully-appear from the following detail description when the same'is read in connection with the accompanying drawings. It is to be expressly understood, however, that the drawings are for the purpose of illustration only and are not intended as a definition of the limits of the invention.

In the drawings, wherein like reference characters designate like parts throughout the several views,

Fig. 7 is a top plan view of said book-clamp on the same scale. 1 '1 'Referring now to the drawings which illustrate by way of example, one form of book-clamp conveyor con; structed, arranged, and operated in accordance with the present invention, 10 (Fig. 1) indicates a portion of the usual in-feed and levelingtable of a bookbinding machine along which groups of book-making signatures or sheets 11 are successively advanced, edgewise in upright posi tion and with the binding edges thereof lowermost in or assemblage of sheets, folded and/ or unfolded, printed,

and/ or unprinted, on which one -'or. more operations .are to be perfor'medin the manufacture of hard or soft cased books of various descriptions, directories, cata Fig. l .is a side elevational view ofa book-clamp conlogues, pads, or the like.

The books 11 delivered one after another in timed re,- lation to the table 10 by hand or by suitable conveyor means (not shown) which may be the signature gathering conveyor of an associated signature feeding and gathering unit, are advanced along said table in proper spaced relation by the usual pusher fingers 12 :(Fig. 1) which are pivotally connected ,to and spaced at intervals along an endless chain-carrier 13. The fingers 12 pro ject laterally from the chain 13 into book-engaging position through and between vertically disposed, transversely spaced, guide plates 14 which serve to hold the books 11 in upright position and to guide the same for move' ment by said fingers in a straight longitudinal. path. The upper reach of the chain 13 travels in a downwardlyfin clined path so that each finger '12 will gradually move downwardly relative to the advancing book and pass out of engagement with said book and beneaththe table 10 at a locality spaced rearwardly of the forwardend bf said table, the table being provided with a suitablenarroi'v opening to enable the fingers 12 to pass therethrough. The upper reach of the chain 13 passes over ari'idl'r guide sprocket 15 and then passes around a driven sprocket 16; The sprocket 15 is suitably journalled on'a standard. 17 which supports the front end portion of the table 10 and is bolted or otherwise suitably secured to a base 18. The sprocket 16 is disposed below-the table 10 and is fixed on a short transverse shaft 19 which is journalled in a suitable beating provided in a=bracket 21 which is bolted'or otherwise suitably secured to the base 18. The sprocket 16 and chain 13 are suitably d'riveri withja continuous motion atla desired uniform speed from the main drive shaft 21 of the machine and for this purpose, said'shaft has fixed thereona bevelgear 22 which m eshes with a similar gear 23 that is fixedon a short transverse shaft 24 which is journalled in a suitable bearing in the bracket 20. and projects beyond opposit'e sides of saidbracket. Secured to the-shaft 24 and disposed between the bracket 20 and the bevel gear23 is a spur gear 25 which meshes with a similar gear 26 that is fixed on the shaft 19 and, hence,- drives the latter shaft, the sprocket 16 and chain 13. i

As each book ll in turn approaches the forward ;end portion of the table and while it is still being advanced under the action of the Ipusher finger 1 2,--said book is taken by a novel book-clamp conveyor, indicated generally at 30 (Fig. l), and farther advanced along said table, then firmly clamped before it has passed beyond thepos'ition in whichit is supported on the table, and then still farther advanced beyond said table in a straight longitudinal path of a substantial longitudinalzextent with the back orbinding edge thereof protruding. ,Each book 11 so clamped and during movement thereof in the straight longitudinal path by theconveyor 30, is operated upon at the exposed and protruding back or binding edge thereof ,by various mechanisms spaced along aid path for performing .the individual steps in the binding and covering process. Since the various mechanisms per se, and the individual binding and .cover applying operations performed thereby on the books 11, are well known and form no partof the present invention, it is-believcd to be unnecessary to illustrate and describe the same.

shown in Fig. l, the novel book-clamp conveyor 30 is wholly disposed above the plane of the leveling table lofland comprises an endless series of upright bookclamps, indicated generally at 3-1, which travel around a vertical orbit, as distinguished from book-clamp conveyors heretoforeemployed for the same purpose which z 7 2 701 ,1 R 1,2 A

a the same side as the remaining standards, and the'delivery V are disposed at one side of the leveling table and comi prise an endless series of upright book-clamps which travel arounda horizontal orbit. It will'thus. be apparent that by virtue of the described arrangement of the novel book-clamp conveyon30 a comparatively small amount of floor space is required therefor, resulting in a material constructed, arranged, and operated as follows. Spaced along the desired path of straight-line movement of the shccessive books 11 is a plurality of standards 32 (Fig. 1)

'which arebolted or otherwise suitably secured to the .base

18 and project upwardly and inwardly from said base above the plane of theleveling table 10. Bolted or otherwisesuitably secured to the upper inner end of each standard 32 is a split-bracket 33 (Figs. 1 to 4) having a bore extending longitudinally therethrough, the axis of which is substantially central with respect to the book path. Disposed between the standards 32 and enga ged in the boresof the brackets 33 are longitudinally extending spreader-tubes 34 and 35 which are securely clamped insaid brackets and are further suitably keyed thereto to positively prevent relative rotation thereof; There are shown three standards 32, .i. e., one at each end and one in the center of theconveyor 30, and two spreader-tubes 34,

35, but this number of standards and tubes may be increased or decreased depending on the'length of said conestablishments. As shown, the standard 32 at the delivery or right-hand end of the conveyor 30, as viewed in Fig 1, is disposed at the side of said conveyor opposite that at which the remaining standards are located, for the purpose of accommodating a delivery mechanism,iindicated generally at 36 (Fig. l), which may be of the well-known endless apron or belt type, for receiving the completed books'll discharged by the conveyor 30 and further advancing the same in a direction at right angles to said conveyor to a convenient point for removal therefrom. It is to be understood, however, that the standard 32 at the delivery end of theconveyor 30 may be disposed at mechanism 36 extended in the opposite direction for delivery'of the completed books in said direction.

The free left-hand end of the spreader-tube 34, as viewed in Figs. 1 and 2, projects beyond the bracket 33 on the adjacent end-standard 32 and extends rearwardly over the forward end portion of the leveling table 10. Engaged by a. tight push fit in the free openendofthe tube 34, is an annular portion 37 of a bearing-'bracket'fis' (Figs. 2 and 3) which is provided with a horizontal bore extending transversely therethrough or at right angles to the axis of said tube. The bracket 38 is positively held against rotation relative to the tube 34 by diametrically opposite keys 39 (Fig. 3) which are boltedfor otherwise rigidly secured to'said tube internally thereof and are engaged in suitable keyways formed in the portion 37 of said bracket. The free right-hand endof the spreadertube 35, as viewed in Figs. 1 and 4, projects forwardly beyond the bracket 33 on the adjacent end-standard 32.

Engaged by a sliding fit in the freeopen end of the tube 35 is an annular portion 40 of .a bearing-bracketv 41.

secured to the tube 35 at the'top'and bottom and adjacent the free end thereof, which blocks have adjustably threaded therein bolts 45, the heads of which are-engaged with vertical lugs 46 formed on thebearing-bracket 41. 7

Accordingly, thebear'ing-bracket 41 and parts carried thereby to be hereinafterdescribed, may' beaxially ,ad-

' justed relatively to and away from thespreader-tube. 35

i 7 atopposite sides of the bracket 38" and substantially in.

veyor which may 'beincrease'd ordecreased in accordance through rotation of the bolts 45 in the properdirection and engagement of the heads of said bolts with the lugs 46, for a purpose to appear hereinafter.

The bearing-brackets 38, '41 have equal portions disposed at opposite sides of the common axisQof the spreader-tubes 34; 35, and said'brackets have journalled in the bores thereof, by means of appropriateanti-friction bearings 47, short transversely extending horizontal shafts 48 and49, respectively (Figs; l to 4) Arranged contact therewith, except for a slight running clearance, are identical sprockets 50 of'a relatively large diameter which are keyed or otherwise suitably secured to the shaft '48. Arranged at" opposite sides of the bearingbracket 41 and substantially in contact therewith, except for a slight running clearance, are sprockets 51 which are identical 'with the sprockets'50 and are keyed or otherwise suitably secured to the shaft 49. Engaged with and passing around the rear halves of the sprockets 50 are from said sprockets to and pass around the front halves of the sprockets 51. As thus supported, the chain'assemblies 52 provide two transversely spaced,"p'arallel and aligned endless flexible carriers which are symmetrically disposed atopposite sides ofvthe commonaxis of the spreader-tubes 34,35, and each..of which is arranged for movement through a closedor circulatory path lying in a. vertical plane and defined by alower outgoing straight course extending from the respective sprocket'50 to the respective sprocket 51, an upper-return straight course extending from the respective sprocket 51 backto the respective sprocket 50, and semi-circular courses connectmg said straight courses at their ends and leading from one to the other. H

As clearly shown particularly in Figs. 4 and 7 of the drawings, each chain assembly orendless flexible carrier 52 comprises a multiplicity of chain sections 53 of predetermined equal lengths and of a'predetermined pitch, preferably sections of roller chain, which are spaced apart a distance equal to twice said pitch and are connected together at their ends by special, outer and inner linkplates 54 and 55, respectively. Each connecting-linkplate 54 has riveted or otherwise suitably secured therein two pins 56 which are spaced-apart a-distance equal to twice the pitch of the roller chain sections 53. These pins 56 in each plate 54 project inwardly from said plate and extend through the aligned openings in the links and rollers at the free ends-of adjacent chain sections 53 and then pass through suitable clearance openings in the companion connecting-link-plate 55. vEndwise displacement of the plates 55 from the respective pins 56 is prevented by suitable means, such as cotter pins inserted in the projecting ends of said pins.

Each endless flexible carrier 52, is thus formed by the roller chain sections 53 pivotally interconnected in succession by the connecting links comprising the plates 54, 55 and pins 56, and both carriers 52 are so arranged about the sprockets 50 and 51 that the sections audconnecting links thereof are in exact transverse alignment. ;;Any slack in the upper and lower reaches orruns of the endless carriers 52 may be taken up, and'the desired degree of tightness of said reaches or runs may be obtained, through axial adjustment of the bearing-bracket 41;.by the adjusting bolts 45, as hereinbefore described,

The roller chain sections 53 of each endless carrier 52 are of an equal number, and since said chain sections are all of the same length, the connecting links comprising the plates 54, 55 and pins 56.will be equally spaced along the carriers. Alternately arranged between the endless carriers 52 and extending transversely of said carriers are short shafts 57 and short rectangular bars 58 (Figs. 4 and 7) which are formed at opposite ends thereof with reduced annular journals 59 and 60,v respectively The shafts 57 and bars 58 combined'are equal in number to the number of connecting linksin a chain assembly, and the journals 59, 60 of the respective shafts 57 and bars 58 are extended through suitable axially aligned bearings provided in the plates 54, 55 of all of the-connecting links, said bearings being located centrally between the connecting pins 56, 56. Disposed between'the plates 54, 55 of all of the connecting links and rotatably fitted on the journals 59, 60 of the respective shafts.57 and bars 58 are anti-friction rollers 61 which are of a diameter slightly larger than the vertical dimensionsaof said-plates and the plates of the links of the chain sections 53. The sprockets 50 and 51 are provided with'semi-circular notches or recesses 62 (Figs. 1, 2 and 4) in andproperly spaced, about the peripheries thereof to receive the.rollers 61 as the endless carriers 52 travel around said-sprockets The lower reaches or runs of'the endless carriers 52 are supported and guided for straight-line outgoing movement by two track bars 63 (Figs. -1 to which extend longitudinally between the sprockets 50 and 51 and are milled at and along the inner sides thereofto provide trackways 64 therein for receiving said-reaches and upon which the rollers 61 ride. The rollers "61 contact the-upper and lower surfaces of the trackways 64-;and-substantially contact the inner walls of said trackways, exce'pt for theslightest possible clearance, whereby the lower reaches or runs of the endless carriers 52 are held against upward, :downward and outward displacement,saidinner'walls being undercut'to provide clearance grooves 65 for the 1061i, necting-link-plates 55 and for the outer link-plates of the chain sections 53. The upper reaches or runs of the endless carriers 52 are supported and guided for straight-line return movement by two similar longitudinally extending track bars 66 which, like the track bars 63, are provided with trackways 67 and undercut grooves 68 for receiving said reaches or runs with the rollers 61 thereof contacting the upper and lower surfaces of said trackways and sub stantially contacting the inner walls of the latter. The upper portions of the lower track bars 63 extend substantially to the respective sprockets 50 and 51, and the lower portions of said bars extend below said sprockets, and said portions at the opposite ends thereof are rounded, bevelled, or flared to facilitate movement of the rollers 61 into and out of the trackways 64. The upper portions of the upper track bars 66 extend over the respective sprockets 50 and 51, and the lower portions of said bars extend substantially to said sprockets, and said portions are likewise rounded, bevelled, or flared at the opposite ends thereof to facilitate movement of the rollers 61 into and out of the trackways 67. -,The two lower track bars 63 and the two upper track bars 66 are bolted or otherwise suitably secured to the lower and upper ends, respectively, of a plurality of vertically extending, longitudinally spaced brackets 69 which are disposed at opposite sides .of the spreader-tubes 34, 35. (Figs. 1 to 5). The brackets 69 at one side of the spreader-tubes 34, 35 are aligned with the brackets 69 at the other side of tubes, and said brackets are adjustably clamped in pairs to the tubes 34, 35 for pivotal movement about said tubes for track-bar aligning purposes. Accordingly, each pair of brackets 69 has extended loosely therethrough a relatively long bolt 70 and two relatively shortbolts 71, the long bolt 70 passing beneath the spreader-tube 34 or 35 as the case may be and having a clamping nut 72 threaded thereon, and the short bolts 71 passing over said tube and being threaded into opposite sides of a block 73 which is bolted or otherwise suitably secured to the tube. The semi-circular courses or runs of the endless carriers 52 are guided and maintained in engagement with the respective sprockets 50 and 51 by curved track bars 74 which are engaged by the rollers 61 of said carriers. These track bars 74 are bolted or otherwise suitably secured at their ends to brackets 75 which, in turn, are adjustably bolted to the track bars 63 and 66. e

The shafts 57 and bars 58 serve to support and to operatively connect the book-clamps 31 with the endless carriers 52 at equally spaced intervals throughout the lengths of said carriers and such that said clamps are successively disposed with their lengths parallel to the lengths of the carriers. For this purpose, the shafts 57 and bars 58 are paired with each pair consisting of one shaft 57 and the next following bar 58 considered in the direction of travel of the endless carriers 52, as clearly shown in Fig. 2, and for each book-clamp 31 one of said shaftsand one of said bars is utilized. The book-clamps 31 are identical in construction, mounting and operation and a description of one of said book-clamps will therefore suffice for all of the same. I

As shown particularly in Figs. 2, 6 and 7, each bookclamp 31 comprises a vertically extending fixed clamp;

member 76 disposed at one side of the book path, and a companion vertically extending movable clamp member 77 disposed at the opposite side of said book path and mounted on said fixed member for pivotal movement toward and away from the same. The fixed clamp mern: ber 76 is in the form of a plate-like casting made of a suitable strong but light weight material such as, for example, magnesium, and suitably ribbed for added stiifness and strength. The fixed clamp member 76 is provided at the top and rear end thereof with two suitably bored transversely spaced bosses 78 which are engaged over the shaft 57 and pinned or otherwise suitably secured to said shaft. The fixed clamp member 76 is provided at the V bya substantially smooth and't'miform movement for replacement purposes' top'aiid front end thereof with twoitr ansvefsely spaced bosses 79 which ar'etransversely milled to'pr ovide aligned nectionsbetween'theshaft 57 and bar 53,-elfectivel "and advantageously afforded by the chain sections 53, are curved about said sprockets causing a shortening of the center distance between said shaft'and said bar, the bar may effectively slide relative to the book-clamp towards-the-shaft 57, in the manner clearly to 'bennderstood from an inspection of Fig. 2,:andthereby compensatefor and permitthis shortening of said center distance; Thus, the :endless carriers 52 may effectively follow-the contour of the sprockets 50 and 51 ,and by virtue of the flexible connections between each shaft 57 and the companion bar 58, and the mounting of said shaft andfbar on the special connecting links which define relatively short chordsas they-traVeLarOund said sprockets, the angular velocity of eachbook-clamp '31 as the latter travelsar o'und the semie circular courses will remain substantially constant, whereendless carriers and book-clamps is obtained;

' Wear plates 81 (Figs; 2 and'3) are preferably disposed between the bar 58 and the'bos'ses 79, said plates being removably carried by said bosses in a'suitable'vmanner The clamp member 76'being fixed to the shaft 57, as described, is thereby'held against axialdisplacement relative to said shaft, and in order'to further guard against any, lateraldisplacement of said clamp member relative to the shaft 57and the bar 5821 block 82 is snugly fitted in the space between the-bosses 79 and bolted or otherwise suitablysecuredto said bar.

' The fixed clamp member 76 is formed at the lower end thereof with a"book engaging jaw 83 (Figs. 2, 6 and 7) which is of a'desired length to accommodate the maximum size book 11 that may be handled, said jaw having suitablysecured to its inner surface two vertically spaced metallic strips 84 which extend the entire length of the jaw and are suitably knurled, scored or otherwiseroughened to increase the gripping action of said jaw on the books 11. 'The fixed clampmember 76 is located substantially central between the endless carriers 52, in which position the inner book-contacting surfaces of' the strips 84 onthe jaw: 83 are located substantially inthe same vertical plane as the common axis of the spreader-tubes34 and 35, thus establishing a definite lateral-position for all the books 11 of varying sizes and thicknesses that may 7 be handled to insure accurate performance of the binding,

cover applying .and other operations thereon Thje fixed clamp member 76 has removably secured, thereto at the rear end thereofa book-engaging-piii 85 (Figs. 2, 3 and 6) which projects inwardly therefrom above the jaw 83 and across the book'path, said pin serv ing to head-up or align the individual signatures orsheets of the book 11, and to impart continued advancing movementjto said book until the clamp 31 doses thereon, and serving .asa gage to properly determine the longitudinal position of the book 11. in said clampfor books of average size lengths, the pin 85 is located on the fixed clamp member 76 in the position thereof shown in'the drawings, and for longer books 11 up to the maximum length that may be handled, said pin is repositioned in an opening 86 provided in said clamp member 'for this pnr ose. V V t p j p As shown inFigsZ, 6 and 7, the companion movable clamp mer'nber 77 is centrally located lengthwise with respect to the fixed clamp member 76 at the side of the latter facing-the jaw 83, and is in effect in the form of a'bell crank haviing arelatively ,wide downwardly projecting arm 87and a. relatively wide arrn projecting inwardly over and beyond a brace 89 which is formed integrally with-the of the r fixed clamp n'1e1nber adjacent the upper end thereof 7 'serves to connect and strengthen the portions of said fixed member carrying the bosses 78 and'79. ,The movable clamp member 77 is also made of a strong but light weight materialsuch-as, for example, magnesium and is suitably ribbed for added strength and stiffness. The movable clamp member 77-is fittedbetween longitudinallyspaced bosses 90 formed'integrally with the fixed clamp member 76, and said movable clamp member is pivptally mounted on a longitudinally extendingshaft 91 which is carried by said bosses andis pinned or otherwise suitably s ecured thereto.

Extending longitudinally of the movable clampfmember 77 and journalled in suitable bearings provided in the lower free end of the arm 87 of said member is a shaft 92 (Figs. 2, 3 and6) having suitably securedto the projecting opposite ends thereofacompanion book-engaging jaw 93 which is aligned with and is of the same length and width as the jaw 83 on'the-fi'xedclamp member 76. The

jaw'93 has suitablysecured to its inner surface two'vertically -spacedlongitudinal metallic strips 94 which are knurled, scored 'or' otherwise roughened to increasethe gripping'ac tion' of said jaw on the books 11. Pinned or otherwise suitably secured to the projecting forward end of the shaft-91 whiehis fixed'in the-fixed clamp member 76, as hereinbefore described; is a short arm 95 to the free endof-which is pivotally connected the upper end of a link 96. The lower end of this link'96' is pivotally connected to the free end ofa'n arm 97 which is of the same length asthe arm 95 and is pinned or otherwise suitably secured to-the shaft 92 which carries the jaw 93 and is pivotally mounted in the" movable clamp member 77, as hereinbefore described."

The movable clamp member 77 is rocked toward and away from the fixed clamp member 7 6 to clamp closing and opening positions, respectively, to firmly' clamp the book 11 between the jaws 83 and 93 for imparting straight-line advancing movement to said book, and to firmly hold the book ll during such movement while the binding and'co'v'er applying and other operations are be- 7 ing performed on the protruding back orbinding edge 9 thereof, andto thereafter release the completed book at a point above the delivery mechanism 36 for discharge thereto. It will :thus be apparent that when the movable clamp'member 77 is rocked; toward the fixed clamp member 76, as well as away-jfrom said fixed clamp member, the jaw '93 on said movable clamp member will, by virtue of the described parallel-arms 95, 97- and connecting link j t 96, always remain parallel with the jaw 83 of the fixed clamp member 76 regardless of the positions it may occupy with respect to the jaw 83, as will be clearly seen from an inspection of Figs. 3 and 6. In this manner, no wiping action will be imparted to the bookll by the jaw '93 to disarrange-the outer signatures or sheets of said book upon engagement of the 'latter by'said jaw,-and a firm clamping engagement of -each book 11, regardless of its thickness, by and between both jaws 83 and 93 in parallel relation is assured. i

e The members 76, 77 or the book-clamp, 31 have bolted or otherwise suitably securedthereto opposed longitudinally' extendingupright guide plates 98 and'99, respectively (Figs 6 and-7'), which serve to hold the upper loose portions of the signatures or sheets of the book 11 against flaring outwardly during movement of said book by said clamp, and in order-to eliminate the possibilitylof said plates striking the book- 11 :uponrotary movement of the book-clamp 31 into book engaging position, the forward or leading end portions of saidplates are bent or flared outwardly, and the lower longitudinal edge portion of the ,plate 98 is bent or flared outwardly with a gradual increase from the forward end to the rear end thereof.

The book-clamp conveyor 30 is continuously driven'at V a proper speed in relation to the speed of the pusher-pin chain 13 by driving :means to be hereinafter described,

and in the operation 40f ;-s;ai,d, conveyor, .as each book clam 31 itnavelsrirqiu an; unpqnstraight retu n 0 991 lQ rim into the semi-circular course around thesprockets50, said book-clamp is opened, as shown at the top of Fig. 3, and maintained in opened condition while it passes downwardlyaround said semi-circular course and .until it begins to enter'the lower straight outgoing course or run, at which time the book-clamp 31 is closed with the same in substantially true vertical position. Under these conditions, as the opened book-clamp 31 travels downwardly around the-lower half of the semi-circular course, the fixed clamp member. 76 passes alongside of and parallel to the adjacent guide plate 14, and the movableclamp member 77 passes alongside of and parallel to the other adjacent guide plate 14, thus straddling the leading book-11 on the feed table with the header-up pin85 on said clamp extend. iug across the top of the guide plates 14 and coming up behind said book. The guide plates 14 have portions thereof removed at their2upperforward ends to clear the header-up pin 85. for movement of the latter over said plates. I

i As the. leading bookll approaches the forward end portion of the feed and leveling table 10 and while it is still. being advancedunder the influence of the pusherpin 12, said book is engaged at the rear edge thereof-by the header-up pin 85. on-themovingbook-clamp 31 and continued along said-table with said clamp by said latter pin until the book-clamp. closes on and firmly clamps the book by and between the-jaws 83 and 93 thereof, whichoccursbefore said-book has passed beyond the position in whichit is supported on the table 10 and when said clamp is intrue vertical position. Upon engagement .of thebook 11 by; theheader-up pin 85 on the moving book-clamp 31, the pusher-pin -12 ceases to acton said book and passes downwardly throughand beneath the feed table 10 andaround the sprocket 16.

The book 11 firmly-held by thebook-clamp 31 is the farther advanced from andv beyond the leveling table 10 by said clamp in a straight longitudinal path with the back or bindingedge of said book'protruding beyond the lower edges of the jaws 83 and.;93,-as shown in Fig.- 6, for the performance of bindingand cover applying and/or .other operations thereon by suitable mechanisms (not. shown). spaced-along and arranged ,beneath. said path of book travel. As -.the.f.bOok-clamp; 31 with the book 11 approaches. the 31101, delivery -.endof thelower straightoutgoingcourse or-run, the "movable clamp member 77 is swung awayfrom the, fixed clamp member76, thereby opening the clamp -31 and releasing the completed book to fall downwardly onto and-along a guide chute (not shown) which directs the completed book with the :cover thereof closed onto the delivery conveyor 36. The opened booloclamp 31 then proceeds upwardly around the semi-circularcourse ofthe sprocketsSl and is again closed-before it reachesvthe .top of said course. From thesemi-circular course. theclosed-book clamp 31 travels inlQfind along the .uppenstraightreturn' course or run until ,it ,approachesithe far. end of-;sa'id return course, at which time said book-clamp is agairiopened-and the above described operations are repeated to engage, clamp, andadvance another bookll. The operations described above in connection with-one book-clamp 31 are'repeated for. each successive'bookwlamp, whereby successive books 11, are engaged, clamped -and'advanced 'in a continuous process foroper'ation's thereon;;and completed books are successively dischargedyto the-.deliver'yrconveyor'36; ejl'he described clamp-openingand closin'g'operations at the book receiving end. ofs 'the conveyor 30 are effected through movement. of the book-clamp .31 'and' forthis purpose, each book clamp 'has journalledon the'arm88 ofzthe :movable bell-cran'kclamp member 77 thereoffa roller 100 (Figs.-.2,;3.7. and. 7) which is adapted-to engage the outer-peripheral:surface o an'oval-shaped camtrack 101.: This;cam;track 101isbolted or otherwise suitably secured:centra1lythereof toa horizontal lug102 formed; integrally; with: the; bearing bracket 38,. and is fprtherzholted :or :;otherwise; suitably secured adjacent the 210 free ends thereof to the upper, and lower ends oi a vertical bracket 103 which is also bolted or otherwise suitably secured to said bearing bracket. The cam track 101 is so proportionedthat -.the free endsthereof overlap the adjacent endsof the upper and lowerstraight runs of the endless carriers 52, and said free endsof said cam track are tapered, as shown in Fig. 2,to.provide for a gradual and smooth openingand closing of the book-clamps 31.

.The movable clampmember 77 of each book-clamp 31 is continuously'urged under heavy spring pressure towards the companion fixed clamp member 76 to hold said book-clamp firmly'closed-and in firm gripping engagement with thebook 11; Forthis purpose, each book-clamp 31 is provided' with at least two heavy coil compression springs104' (Fig. 6) surrounding rods 105 and having corresponding ends thereof engaging against a plate 106 and the opposite endsv engaging against annular shoulders provided by collars 107 secured to or formed integrally. with said rods. 'Thelower ends of the rods 105 extend loosely through suitable clearance openings formed in theplate 106 which is bolted or otherwise suitably securedto'the fixed clampv member 76, and the upper ends; of rods extend 'into suitable recesses formed inthe underside o ftthe arm 88 of the movable clamp member 77. Ii desired,-a; suitably recessed steel wear plate may be bolted or otherwise suitably secured to the arm 88; of the movablezclamp member 77 for engagement by the upper ends ofthe rods 105.

It will thus be apparent that when the roller on each moving book-clamp31- engagesthe tapered end of the upper half portionj-ofthe cam track 101, which occursas said book-clamp approaches the far end of the'upper straight return course, the movable clamp member .77 will be gradually andsmoothly swung outwardly away from the companion'fixed clamp member 76 against the actionof the springs --104, thusopening'the bookclamp, ,andathrough continued,engagement of the roller 100 with thecam track--101 effected by'the springs 105, the-book-c larnp, 31 ;will be. maintained .in opened conditionas-it travels around the sprockets 50. and until said roller-ridesintothe tapered end of the lower half portion of thecam track 101, which occurs shortly after said book clamp passes into thelower. straight outgoing course. Thereuponthe movable. clamp member 77, upon continued forward movement of ;the book-clamp 31, will be gradually and smoothly swung inwardly towards the fixed clamp member ,76; and into firmclamping engagement with the book 11 by the'expanding action of the springs 104. a Theextent of inward movement of the movable clamp member .77 and consequently the extent that the roller 100 followslhe tapered end of the cam track 101 is dependent-upon the thickness of the book 11 n n led-.; l n y. pon. engagement of the movableclamp member .77 withthe book 11 and continued forward :movement-of. .the book-clamp 31, the roller 100 will leave the cam track 101 and, hence, said book-clamp with;said-;book therein will remain closed substantiallythrough-out; theremainder'of its straight outgoing courseor untihit approaches the far or delivery end 1 r e-;; v Y

The described, clamp. opening and closing operations atthe .book,delivering.end of the..;conveyor 30 are also effected through, movement of the book-clamp 31 and for this purpose, a .ca m .arm v 108 is provided (Figs. '4 and 5) which is disposed -in the .path-of forward movement. of the rollers-100 on the book-clamps .31 and is formed with arelativelyilong horizontal straight portion terminating in a forwardlyandrupwardly curved portion. The rollers 100 on the book-clamps 31 engage the lower or outer -edge'.o f the cam arm 1,08,; and said edge at the rollerreceiving endpf the. horizontal portion of said arm. is ..tapered,-. as shown in Fig.'--4, to provide for a gradual andgsmooth openingfof each book-clamp 31. The curvat ure .of the-roller engaging edge of the curved ppttionof the arm;10,8 isso chosen and proportioned to the shaft 48.

to provide ror a gradual and smears e esi f ger each book-clamp 31 as the latter proceeds aroundthejlower half of the s'eini circular return course; The arm 108 is pivotally mounted; as #109,- on as-extensien 110 of the bearing vbracket 4-1 (Fig. 4) so'thatsaid arm may be adjusted in a vertical plane in aceordanee with the thickness of the b'ooks '11 being handled, whereby opening of the s'uccessive book-cla'rnps 31 and' discharg'eyof 12 understood 'that said invention is not limited to said embodiment. Various changes i'nay be made therein;- particularly in the design and arrangement Of i118 illustrated, as we11-as in the mode of operation and: manner of use, without departing from the spirit and scope-of -the invention, as-will now be cle'ar tothese V skilled in the-art.

the complete books therefrom willyal'ways occur" at the 7 same locality-of :the-bookp'ath roe-s11 the books of different thicknesses that may be-handldQ "Pivotally connected at 111 to the free endlof the horizontal portion of the cam arm 108;-is the-lower' end'ojf an externally threaded-rod =1- 12whichextends upwardly from said arm through suitable elongated clearance openings formed in lower and-upper=-braekets-1=13 and *114, respectively, which are bolted or otherwise suitably secured It will thus be apparent that'as each botSk-elainp 31 with the treated book 11 therein approaches "the far or What is claimed is:

1. In apparatus oiEth'eclass"described, a substantially horizontal support, means for advancing books one aftei'f another edgewise and in upright-position a longysaid sup- 'port, a plurality of upright book clarnps arranged above said support for successively receiving and clamping-the? successive books whilevon saidsuppoi't and-further -ad-f vancing said books edgewise-and in upright position "from;

and beyond said support, said book clamps each-coniprising a fixed memberand a -;cpn1 ai1ioi1 member mounted on-saidfixed nienib'er foi'hiloveinent toward'aiid away from the latter, means for driving said book-claiitiisl through -a circulatory path defined by 'a lower straight outgoing course andr an upper returncourse, said courses.

' being connected 'at their ends by serni-circularcourses 7 7 leading from one to the other thereoffa'nd means spaced delivery end of the lower straight outgoing course, i-the roller 100 onsaid book clarnp willfpass into engagement with the tapered endrof' the surfaceof the earn arm 108 and then ride along said surface'g whereupon the-mow able member 77 or said clamp will "be gradually and smoothly swung outwardly away from the companion fixed member 76 against the action of the s rin s 104, thus opening the book-clamp and releasing the completed book for discharge tothe delivery, conveyor or-niechanism 36. Shortly afterfthis opening of each hook-clamp 31 and release Ofdheconipleted b'oo'ltthereby,said clamp moves upwardly around" the=semi circularietuincourse, and'through said movement, the continued engagement of the roller 100 with the cam -arm' 108;eflected= bythe springs 104, and the curvature of the curved-portion (if said arm, the'rnovable member 77 of the clamp is gradually and smoothly swung' inwardlyftowai'ds-the companion fixed member 76 by the expanding mien of the springs 104 to fully closed position -with the jaws 83 and 93 of said members in contat with each other; at which time the ;roller"100 leaves the earn-aim 108. The book-clamps 31 so opened and closed successively; as described, then remain closed for substantially the remainder of their return course anduntil -the'y successively approach the'far end of said course, whereupon said book-clamps are again successively subjected-to the above 7 described clamp opening and closing operations"at the book receiving end and the conveyor at-"the book discharging end of The book-clamp conveyor '30is continuously driven along and connected to said book-c' lanipedriving m ans 'for supporting the fixed member of each-book clamp and drivabIy connecting the fs'arn'e" to said driving mean one of said spaced supporting means beingicapableof movement toward and away-fromdhe-other ofsaidspaced' supporting means relativetolboth members of eachbook clamp as the latter travels around said semi-circular courses and passesjfromsaid se'mi-cijrcular courses to-saidstraightcourses, respectively. I I V 2. '-In apparatus of the class describeiwa-support, means for continuously advancing a succession of books n spaced relation edgewise and in upright position along said support, a plurality of upright -book-clamp's arranged-1' at a predetermined speed=in'relation'tothe'speed of the V pusher-pin chain 13 such that the successive book-clamps 31 will accurately meet and engage the successive books 11 as the-latter are being -advanced along the table 10 the pusher pins 12 and arrive at-the forward end portion of said table. For this purpose' the continuously driven Itransv erse shaft "24 ma fixed thereon a relatively small diameterv twin sprocket 2116 around which passes a twin chain 117 of jth rolle ir-type, which also passes around and drives a rela'tively' large diameter-'- twin sprocket 118 that is keyed or otherwise suitablysecured The operation of the book-clamp conveyor 30 constructed and arranged-in accordance with the present in vention will be clearly understood fromi'theaforegoing description, and while said descri tion and-the a'ccom panying drawings -set tfontli within'o're dr less' pai ticularity one embodiment etuie inventionpit lists he expressly receivingrand clamping the'successive books-Awhilemin said table andfurther advancing'saidibooks edgewise andl above said support forsuccessively reeiving and clamp: ing'the successive books while in motion and co tinuing the advance of said booksedgewi'se and in upright posi'-- tion .from and beyond said support, said-book elanipsf each comprising a fixed member and-aeompanieamem= ber mounted-on said fixed member for movement towardf parting continuous movement tofsaid boolec1amps through a closed path defined'by a lower straight outgoing and .anupperr'eturn course, said courses beingconnected at their ends by semiecircular courses fleading'fronione to the a other thereof, ;and means-"spaced alongand con;

3. .In apparat'usmf the class described, a table,- rnea'ns for advancing books one after another {e'dgew'is'e and-"in upright position along said table, a plurality of upright: 7

book-clamps arranged .above saidtable for successively in upright position gfro m' and; beyond said :table,-' each. clamp comprising a fixed member disposed .at "one side of the -book path andia companidn member disposed fat 7 thecother side of said lbookipath and mounted on;;and:

movable towards and away from ssaid'fixed memberto;

courses being connected -at their ends by semi-circular courses leading from zone-16 the other thereof, saidzendless means being arranged so the aIotverfnutgoing;

straight course of the clamps begins at a locality overlying said table, means spaced along and connected to said endless fiexible means for supporting the fixed member of each book clamp and drivably connecting the same to said endless flexible means, one of said spaced supporting means being capable of movement toward and away from the other of said spaced supporting means relative to both members of each book-clamp as the latter travels around said semi-circular courses and passes from said semi-circular courses to said straight courses, respectively, means for closing each clamp after a book is received between the said members thereof and said clamp has entered said lower outgoing straight course, and means for thereafter opening each clamp to release the book therefrom at a further locality of said closed path.

4. In apparatus of the class described, a book-clamp conveyor for advancing a succession of books along a predetermined path for the performance of operations thereon, said conveyor comprising two horizontally extending endless flexible carriers arranged in opposed spaced parallel relation and having aligned straight runs at one side thereof and aligned straight runs at the opposite side thereof, rotary means arranged at opposite extremities of said runs for supporting said carriers and for imparting advancing movement thereto in unison, a plurality of book-clamps disposed between and spaced along said carriers and projecting outwardly therefrom at right angles to said runs, double means carried by and spaced along said carriers for supporting each book-clamp and for connecting the latter to said carriers for movement thereby through a closed path, one of said double means being capable of movement toward and away from the other of said double means relative to the book-clamp as the latter travels around said rotary means and passes from said rotary means to said straight runs, respectively, said book-clamps each comprising a fixed member receiving said double means and providing for said relative movement of the said one of said'double means, and a companion member mounted on and movable towards and away from said fixed member to clamp closing and opening positions, respectively, each of said book-clamps being adapted to receive a book at one locality of the aforesaid path and hold said book with an edge thereof protruding beyond the outer end of the clamp during movement of the latter to a further locality of said path, spring means carried by each book-clamp for closing the latter, means arranged at the said one locality for controlling the closing of each book-clamp by said spring means, and means arranged at said further locality for opening each book-clamp.

5. In apparatus of the class described, a book-clamp conveyor for advancing a succession of books edgewise and in upright position along a predetermined path, said conveyor comprising two laterally spaced rear means rotatable about a common horizontal axis, two correspondingly spaced front means rotatable about a common horizontal axis coplanar with the axis of said rear means, two endless flexible carriers extending between and passing around said rear and front means and providing aligned lower and upper straight runs, means for advancing said carriers in unison and such that the lower straight runs thereof travel toward said front means, a plurality of book-clamps disposed between said carriers and spaced therealong equal distances apart, said clamps extending lengthwise of said carriers and projecting outwardly therefrom at right angles to said runs, a first means carried by said carriers and engaged in fixed relation with each clamp for supporting the latter and connecting the same to said carriers for movement thereby through a closed path, a second means carried by said carriers and spaced longitudinally from said first means for further supporting each clamp, said second means being fitted in each clamp for sliding movement toward and away from said first means so as to provide for contraction and extension of '14 the carrier portions between said first and second means as said-portions and the clamp pass around said rear, and front means and pass from said latter means into said lower and upper runs, said clamps each comprising a fixed member receiving said first and second means and a companion member mounted on said fixed member for relative movement towards and away from said fixed member to clamp closing and opening positions, respec tively, spring means carried by the fixed member of each clamp and engaging the companion member for closing the clamp so as to hold a book with the back edge vthere of protruding beyond the outer end of said clamp, means. arranged adjacent said rear means for controlling closing of each clamp by said spring means .when the clamp has entered said lower runs, and means arranged at a further locality of the aforesaid closed path for open ing each clamp.

6. In apparatus of the class described, a book-clamp conveyor for advancing a succession of books edge-' wise and in upright position along a predeterminedpath, said conveyor comprising two laterally spaced rear sprockets rotatable about a common horizontal axis, two correspondingly spaced front sprockets rotatable about a common horizontal axis coplanar with the laxisfof said rear sprockets, two endless chain assemblies -extend-, ing between and passing around said rear and front sprockets and providing aligned lower and upper, straight runs, each of said assemblies comprising an equal number of chain sections of equal lengths and of a predetermined pitch and spaced apart a distance equal to twice said pitch, and links for connecting said sections successively together in such spaced relation and form an endless assembly thereof, said assemblies being so arrangedtliat the sections and connecting links thereof are in transverse alignment, a plurality of cross elements disposedbe: tween and extending transversely of said assemblies and carried by the aligned pairs of connecting links of said assemblies, each cross element being located centrally between adjacent chain sections, means for advancing said assemblies in unison and such that the lower runs thereof travel toward said front sprockets, a plurality of book-clamps disposed between said assemblies and of a number one-half the number of the sections of each chain assembly, said clamps extending lengthwise of said assemblies and projecting outwardly therefrom at right angles to said runs, each clamp extending between and being supported by two of said cross elements, and comprising a fixed member and a companion member mounted on said fixed member for movement toward and away from said fixed member to clamp closing and opening positions, respectively, said fixed member being arranged to receive one of the said two cross elements in fixed relation so as to operatively connect the clamp with said assemblies for movement thereby through a closed path and to receive the other of said two elements in sliding relation so as to enable movement of one of said two elements toward and away from the other element and thereby provide for contraction and extension of the aligned chain sections between said two elements as said sections and the clamp pass around said rear and front sprockets and pass from said sprockets into said lower and upper runs, spring means carried by the fixed member of each clamp and engaging the companion member for closing the clamp so as to hold a book with the back edge thereof protruding beyond the outer end of said clamp, means arranged adjacent said rear sprockets for controlling the closing of each clamp by said spring means when the clamp has entered said lower runs, and means arranged at a further locality of the aforesaid closed path for opening each clamp.

7. A book-clamp conveyor as defined in claim 6, wherein the companion member of each book-clamp is pivotally mounted on the fixed member of the clamp, and including a book-engaging jaw pivotally mounted on said companion member, and means for maintaining said tionsthat it may occupy with respect to said fixed memberi 8;A book-clamp conveyor as defined in claim 7, wherein said means for maintaining the jaw in parallel relation with the 'fixed clamp rnember comprises cooperating interconnected parallel arms, one of said arms being immovably connected to said fixed clamp member, and the other of said arms being operatively connected to said jaw.

'9. A booloclamp conveyor as defined in claim 6, including'rollers journall ed on each of the cross elements, and track bars engaged by said rollers for supporting and guiding the lower and upper runs of the chain assemblies for straight-line movement.

10 A book-clamp conveyor as defined in claim 6; wherein the endless chain assemblies are composed of sections of roller chain, and including rollers journalled oneach of the cross elements and confined by the connecting links, said rollers projecting above and below the planes of said links and said sections, and track verse axis and extending rearwardly beyond the front sprockets above and adjacent said lower run, and means zontal axis extending parallel with said surface towards and away from said fixed member to clamp closing and bars engaged by said rollers for supporting and guiding the lower and upper runs of said chain assemblies for straight-line movement, the rear and front sprockets for supporting and driving said chain assemblies b'eingprovided with suitable recesses in the toothed'peripheries thereof to receive said rollers.

11. A book-clamp conveyor as defined in claim .6,

wherein the companion member of each book-clamp is pivotally mounted on the fixed member of the clamp and 7 includes an upper inwardly projecting arm having a roller journalled thereon, and the clamp opening means isj arrangedto open each clamp before the latter leaves opening positions, respectively, a'jaw mounted on said companion member adjacent the lower end thereof for pivotal movement about a horizontal axis, extending parallel with said surface, saidrtjaw having a complementary planar book engaging surface, and means for maintaining said jaw in parallel relation with the planar book engaging surface of said fixed 'member' in all posi-,

tions that it may occupy with respect to said fixed meniber, said means comprising two arms arranged in parallel relation, one of said arms being immovably connected to said fixed member and located, co-axially with the pivotal axisof said companion member, and the other of said arms being operatively connected to said jaw and located c' o-axially with the pivotal axis of said jaw, and a link for pivotally connecting said arms.

References Cited in the file 'of thispatent UNITED STATES PATENTS 'Brues'tle Jan. 25,1944

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Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2942719 *Feb 6, 1956Jun 28, 1960American Can CoApparatus for treating articles
US3076998 *May 28, 1959Feb 12, 1963Southern Equipment & Supply CoPoultry gizzard splitting and washing apparatus
US3837474 *Jun 18, 1973Sep 24, 1974Dalamere & Williams Co LtdArticle handling apparatus
US4125423 *May 17, 1976Nov 14, 1978Goldsworthy Engineering, Inc.Reinforced plastic tapered rod products and the method and apparatus for producing same
US5304025 *May 13, 1993Apr 19, 1994Horizon International Inc.Section feeder for book binding machine
US5667211 *Mar 23, 1995Sep 16, 1997Ferag AgApparatus for the adhesive binding of printed products
US6612559Jan 23, 2002Sep 2, 2003Grapha-Holding AgConveying device for collecting and transporting printed sheets placed astraddle on a first chain conveyer
EP1232978A1 *Jan 30, 2001Aug 21, 2002Grapha-Holding AGTransport device for gathering and transporting printed sheets laid astride on a first transport chain
Classifications
U.S. Classification198/470.1, 198/644, 270/58.8
International ClassificationB42C19/00, B42C19/08
Cooperative ClassificationB42C19/08
European ClassificationB42C19/08